- An ultra-wide, high performance alloy rim, weight optimized for Enduro, Trail and All Mountain use
- Tubeless ready with anti-burp rim hooks to prevent the loss of pressure and keep tires firmly in place
- 32 holes with an inner width of 35mm and outer width of 39.5mm provides ultra-wide support for Plus-Size and high volume tires
- The corrugated rim center, a brand acclaimed technology, adds exceptional strength, making it more rigid and allowing the rim to be wider without adding material
- Shotpeen finish to increase fatigue life and make it more durable
- MGR Dynamal Alloy

Stiffer, stronger, and ready to party, ARC 31 Carbon Rims take notes from Race Face's Next R carbon wheelset; built to handle the most challenging days on the trail. With one of the lightest enduro rims on the market, you can tackle the climbs with speed while you hit the descents with confidence. The ARC 31 have been redesigned to take full advantage of the benefits carbon fiber has to offer. Featuring a generous 31mm internal width for modern tire widths with lower pressures. Lace these rims to your favorite hub and you’ve got a world-class wheelset ready for action.

The Ribcage has been one of the only rims to have true design breakthroughs in the last few years, since its introduction the competition has scrambled to catch up but still remain a poor copy, so if it doesnt say G-Sport on the rim, don't expect it to perform like a G-Sport rim.
The Ribcage is a light weight rim that can take anything you throw at it. With the ribcage the spoke holes are re-enforced with patented ribs that support the sides of each spoke nipple and eliminate the possibility of nipple pull through under even the highest loads. The rim also features cross-over-spoke lacing, where each spoke goes from one side of the hub to the opposite side of the rim for an increased angle and therefore increased lateral strength. The outer walls are extra thick to protect against case dents, while the other walls are extra thin to keep it light. The entire design revolves around the use of a proprietary high strength aluminum alloy made specially for us in an on-site foundry . At 500 grams, the strength to weight ratio of the Ribcage cannot be matched. The 36mm width and 18mm height are also major factors in the design, spreading out the impacts and maximizing resistance to pinch puncturing. GSport offers rims in HARD anodized finishes rather than the decorative anodizing used by most companies. All of these advantages create the premier rim, but do effect the cost.
TECHNICAL SPECIFICATIONS
- Sizes: 20" Only
- Drillings: 36 and 48
- Weight (Hard Anodised): 500g /17.6oz
- Weight (Chrome Plate): 540g / 19oz
- Width: 36mm ERD: 389

Surly's 50mm wide Rabbit Hole Rim lets you build a wheel that accepts a tire with a large footprint for outstanding control, and traction. This anodized-aluminum hoop has 64 spoke holes and can be built centered or offset. Also, material has been removed everywhere possible (without affecting strength) to keep the rim as light as possible for quick acceleration.

40w rims are the choice for the truly big tires out there. Providing ample support for high volume, modern mountain bike and plus tires, 40w’s are a great compromise between width, weight, and stiffness. If you’re looking to up the game on your big-tired mountain bike, these are a great place to start a build. As with all Whisky rims, these include the tubeless valves and tape required in the box.
- Designed to be used with spoke nipple washers
- Recommended weight limit 240lbs
- 50psi max tire pressure

40w rims are the choice for the truly big tires out there. Providing ample support for high volume, modern mountain bike and plus tires, 40w’s are a great compromise between width, weight, and stiffness. If you’re looking to up the game on your big-tired mountain bike, these are a great place to start a build. As with all Whisky rims, these include the tubeless valves and tape required in the box.
- Designed to be used with spoke nipple washers
- Recommended weight limit 240lbs
- 50psi max tire pressure

Wider and even lower in profile, the new Crest MK3 sheds weight for faster acceleration and climbing. WideRight 23mm internal width increases tire volume for improved stability with wider tires. Inspired by carbon technology, the entirely new rim shape adds strength and virtually eliminates the chance of a pinch flat. Refined over the past 15 years, Bead Socket Technology offers the most trusted tubeless seal in the business, making the Crest MK3 the best choice for lightweight, tubeless XC performance.
- 23mm internal rim width for more stability with larger tires
- Low-profile shape rolls faster, lasts longer, and helps stop tire pinch flats
- Laterally stiffer and stronger for improved handling Wider but even lighter than the original Crest
- More durable rim shape and alloy Most trusted tubeless system for easy setup and low maintenance
- Legendary Crest climbing and speed in a high volume rim
- WideRight optimized for XC tires

Built for bashing, whether on a gravity shred sled or fully loaded bikepacking rig, WTB's KOM Tough rims are extruded from top-tier alloy to provide utmost durability at a reasonable weight. Their legendary I-Beam construction has evolved to further reinforce the rim with dual support beams that provide increased strength and stiffness for the world’s most aggressive riders. Proven on the toughest tracks of the Enduro World Series, depended on for daily trail rides, and trusted while bikepacking in remote regions of the world, KOM Tough rims are available in 25, 29, 35, 40 and 45mm widths to provide a burly rim for every usage and style of riding.
Features:
- TCS 2.0 creates a more robust, easily installed and dependable tubeless system.
- A recessed channel along the center of TCS 2.0 rims allows installation of the all-new Solid Strip, which prevents tubeless tape from sagging at the spoke holes and results in a smooth, consistent interface between the tire and rim.
- 4D angled spoke drilling eliminates binding and lateral loading, and disperses tension more evenly over a greater area.

The Odyssey Litehouse Rim is both light and strong, with super-thick angled sidewalls to minimize the risk of damage when you hang up. The rim features a wider cross-section than normal to compliment modern tire widths. Designed as a semi-brakeless rim that can be run front or rear. When brakes are used, be sure to adjust the pads so they avoid making contact with the tire’s sidewall, as usual.
Features:
- Precision welded joint
- 6000 series aluminum
Specs:
- Width: 35mm
- Height: 21mm
- ERD: 388mm
- Weight: 475 grams (16oz)

Stiffer, stronger, and ready to party, ARC 31 Carbon Rims take notes from Race Face's Next R carbon wheelset; built to handle the most challenging days on the trail. With one of the lightest enduro rims on the market, you can tackle the climbs with speed while you hit the descents with confidence. The ARC 31 have been redesigned to take full advantage of the benefits carbon fiber has to offer. Featuring a generous 31mm internal width for modern tire widths with lower pressures, and available in 28 and 32 spoke holes with incredible stiffness all wrapped up in a mere 445g (27.5). Lace these rims to your favorite hub and you’ve got a world class wheelset ready for action.

Wheels are the first point of contact between you and your bike, and the trail you’re riding on. And while wheel sizes and standards continue to develop significantly year on year, often to both the rider and the industry’s dismay, very little innovation has been seen in the compliancy and responsiveness of the wheel as this first, most important contact and conductor. What Spank has seen in recent years is that bike suspension is continuously evolving and adapting to compensate for stiffer frames and more rigid, deeper profile carbon fiber rims. This overall stiffer rig is being softened, or counter-acted by both bike suspension, and tire design — not to mention the ever lower and lower tire pressures riders are running. Rider position (wider, lower, more forward) is also being impacted directly by the bike frame and cockpit geometries which is constantly aiming for a better riding feel. So surely it is overdue time to re-examine how the engineering of the wheel can become an active contributor to the efficiency of the overall set up. Spank Industries has done just this.
- Low sectional profile height and wide width, adds radial compliance, while keeping high lateral stiffness.
- 30mm internal width extremely versatile, fitting tires from 2.0” to 2.6” perfectly, and even allowing + size tire use, without negative squaring off of tire profiles.
- Ideal for Trail/AM/Enduro bikes looking for a wide profile, without the weight penalty

Make your WTB rims air tight and ready for tubeless use with WTB's TCS Rim Tape. This tape covers the spoke holes and can be used as a lightweight rim tape in any rim. Available in 11-meter (covers 5 rims) and 55-meter rolls (covers 27 rims).

- Road racing/training rim based on the Aerohead rim with a wider footprint that allows for a more aerodynamic rim/tire combination when paired with a 23c tire
- Tire profile mimics the characteristics of a tubular
- Hollow core aluminum with machined sidewalls for improved braking
- O/C version: Off center design allows for dramatically improved spoke tension on a dished wheel, the A23 OC allows for a more aerodynamic rim/tire combination when paired with a 23c tire
- US made A23 rims now feature a tubeless ready design. Combine that with the new 21mm wide Velotape kit and you have a fool-proof Road and Cyclocross tubeless tire setup

Not all carbon rims are created equal. If your carbon rim is too stiff, you're losing speed and risking tire pinch flats. The Stan’s Crest CB7 rim with RiACT absorbs radial vibrations and damps impacts. It's a difference you can feel in the ride of the bike almost instantly. First introduced with Stan's legendary Valor rim, Stan's impact absorbing RiACT technology has evolved to be more responsive and even more durable. The Crest CB7's new layup and rim shape allows for 10mm of radial compliance to absorb larger impacts. The new rim also matches the Valor's strength while using less material to save weight. And when it comes to the lateral stiffness needed for steering precision and control, the new CB7 layup delivers. Wider than the original Valor while still optimized for XC tire widths, the Crest CB7 keeps you in control and rolling faster.
Stan’s backs up the technology in every Crest CB7 rim with one of the best warranties available, including lifetime crash replacement. Better by design, the Crest CB7 is the most advanced rim available for creating a lighter, stronger, more reliable, and faster rolling wheelset.
- Designed for cross country racing and riding
- Patented low-profile sidewalls and 23mm internal rim width
- Ultra-light 325g (29") rim weight
- RiACT system absorbs impacts and rolls faster
- Bead Socket Technology for easier tubeless setup and the best reliability
- WideRight rim design optimized for 2.00 - 2.25-inch tires

Designed with input from Stan's Enduro World Series teams, the new Arch MK3 is ready to own every trail. WideRight optimized for maximum stability with 2.25-inch to 2.5-inch tires, Stan's expanded the internal width out to 26mm while keeping the rim incredibly light. The 27.5-inch Arch MK3 weighs only 425g. A new proprietary alloy and stronger, low-profile rim shape means the new Arch MK3 is built to last. Featuring Bead Socket Technology, the new Arch MK3 also offers the unmatched traction, control, and reliability only found on genuine Stan’s NoTubes rims.
- The perfect balance of strength and weight
- 24% wider than the Arch EX for improved stability with larger tires
- Same light weight as the Arch EX
- Low-profile shape rolls faster, lasts longer, and helps stop tire pinch flats
- 25% stiffer and stronger for improved handling
- Lighter and more durable rim shape and alloy
- Most trusted tubeless system for easy setup and low maintenance
- WideRight optimized for Trail tires

Designed with input from Stan's Enduro World Series teams, the new Arch MK3 is ready to own every trail. WideRight optimized for maximum stability with 2.25-inch to 2.5-inch tires, Stan's expanded the internal width out to 26mm while keeping the rim incredibly light. The 27.5-inch Arch MK3 weighs only 425g. A new proprietary alloy and stronger, low-profile rim shape means the new Arch MK3 is built to last. Featuring Bead Socket Technology, the new Arch MK3 also offers the unmatched traction, control, and reliability only found on genuine Stan’s NoTubes rims.
- The perfect balance of strength and weight
- 24% wider than the Arch EX for improved stability with larger tires
- Same light weight as the Arch EX
- Low-profile shape rolls faster, lasts longer, and helps stop tire pinch flats
- 25% stiffer and stronger for improved handling
- Lighter and more durable rim shape and alloy
- Most trusted tubeless system for easy setup and low maintenance
- WideRight optimized for Trail tires

Asym rims use an asymmetrical design to create a rim that evenly distributes tension, doesn’t require dishing, and makes for a faster wheel assembly. High end WT69 Alloy and an open cavity design keep Asym weights down while eyelets prolong longevity and prevent binding. Featuring a full TCS (tubeless compatible system) inner rim profile, Asym rims provide a lightweight, higher performance value-driven option that works exceptionally well with wheel building machines.

Race Face's popular AR rims have been updated for 2019 with an asymmetric rim profile, improving spoke tension balance and overall wheel build quality and durability. The rim extrusion has also been improved to increase impact performance for more aggressive applications. With a tubeless compatible rim profile and color match capabilities, these rims are ready for any build you can throw at them.
- Offset nipple bed for improved spoke tension balance and wheel strength/stiffness
- Tubeless ready with strong tire retention bead